View of Native American (Anasazi) cliff dwelling ruins at Cliff Palace at Mesa Verde National Park, Colorado. Shows multi-story buildings with windows and square and round walls. Stones are scattered on the ground.

View of Cliff Palace, a Native American (Anasazi) cliff ruin, in Mesa Verde National Park, Montezuma County, Colorado. The stone masonry and mud mortar Cliff Palace stand underneath a cliff side overhang and includes cylindrical and square pueblo...

View of Cliff Palace, a Native American (Anasazi) cliff ruin, in Mesa Verde National Park, Montezuma County, Colorado. The stone masonry and mud mortar Cliff Palace stand underneath a cliff side overhang and includes cylindrical and square pueblo...

View of a square three story masonry structure, one of the Native American (Anasazi) ruins at Cliff Palace, Mesa Verde National Park, Montezuma County, Colorado. Shows stone masonry walls and multi-story cliff dwellings under a solid rock overhang.

Two men stand in a kiva (estufa), beside an adobe wall at Cliff Palace (later Mesa Verde National Park), Colorado. The men, identified by initials: "F.E.H." and "F.W.P.", wear wide brimmed hat, shirts or vests, slacks and boots with knee-high...